DRINKING WATER CASE STUDIES AND WHITE PAPERS

• Validation Of Online Monitors Using EPA 334.0 And EPA-Approved Or Accepted Laboratory Meter Reporting Methods There has long been verification testing between lab and online instrumentation for water quality measurements, especially for Drinking Water and Wastewater (DW//WW). By Jane L. Stevens, Product Manager, Thermo Fisher Scientific
• What's In Your Water?

  When is the last time you took a moment to stop, and smell your water? A continuous supply of clean and safe drinking water is something that most people take for granted. We rarely go to the tap doubting that the water will be clean and safe. 

• How The Performance Of This UF Membrane Is Exceeding Design Expectations

  This article will discuss the operation of a 4 MGD pressurized two-stage Ultrafiltration (UF) plant over a 14 month period at a drinking water treatment facility in North Dakota, and explain how performance of these UF membranes over a fourteen month period demonstrated stable operation with minimal fouling.

• Addressing Fouling Challenges In Water Treatment With RO Membrane

  Reverse osmosis (RO) membranes are widely used in potable water, wastewater, and industrial applications. However, a major issue in the application of RO membrane technology for desalination and wastewater reclamation is membrane fouling. It limits operating flux, decreases water production, and increases power consumption. Membrane fouling also increases the need for RO plants to perform periodical membrane CIP procedure. These problems decrease process efficiency, increase operation cost, and raise environmental issues related to the CIP solutions disposal.

• Cost-Effective Sludge Thickening Processor Using MBR Membrane Bioreactor

  The Toray MBR modules helped a local utility achieve their goals of conserving water and meeting the Regional Water Quality Control Board's effluent standards (Title 22), so the reclaimed water can be used for irrigation and other reuse applications. 

• Ozone To Enhance Removal Of Iron And Manganese And Reduction Of THM

  The U.S. EPA's promulgation of the Stage 2 Disinfection By-Products Rule required  the Public Works Department of Danvers, MA, to establish a Two-Phase upgrade of the plant’s treatment process in order to comply.

• How To Squeeze Money Out Of Your Water Meters

  There are many types of water meters being used across the U.S. to measure water consumption. And even though the panacea for a water utility would be to equip each residence with the same meter — standardizing metering technique, data capture and maintenance — the reality is that a utility needs to be able to read and service the variety of meters that make up its metering portfolio.

• Drinking Water Treatment - Coquitlam Water Treatment Plant, British Columbia

  In 2005, in response to changes to the Canadian Drinking Water Quality guidelines, the Greater Vancouver Water District Board approved a proposal to upgrade the Coquitlam WTP with UV treatment technology to act as the primary means of inactivation.

• How AMI Works To Underpin Resiliency

  With the rate of natural disasters on the upswing—and the possibility of terror attacks and source water issues always present—municipalities are under more pressure than ever to build resiliency into their water systems.

• Retrofitting Malta Desalination Plants With Thin Film Nanocomposite (TFN) SWRO Membrane

  Malta is an archipelago of three islands situated in the Mediterranean Sea, around fifty miles south of Sicily. There are no rivers of any significance on the islands, and the sparse annual rainfall is only about 500 mm. There is a water deficit in Malta. It occurs especially in summer when there is a great demand from the farmers for their irrigation and from the tourism sector.